粉末熔化处理工艺中Y_2BaCuO_5相形成机制
분말용화처리공예중Y_2BaCuO_5상형성궤제
Formation Mechanism of Y_2BaCuO_5 in Powder Melting Process
  • 万方数据
    稀有金属材料与工程 희유금속재료여공정
    RARE METAL MATERIALS AND ENGINEERNG
    2009年 12期 2222-2225 ,共4页

    冯建情%卢亚锋%徐晓燕%熊晓梅%刘国庆%张翠萍%陈绍楷%张平祥%周廉

    풍건정%로아봉%서효연%웅효매%류국경%장취평%진소해%장평상%주렴

    粉末熔化处理工艺%Y_2BaCuO_5%热处理%择优生长 粉末鎔化處理工藝%Y_2BaCuO_5%熱處理%擇優生長
    분말용화처리공예%Y_2BaCuO_5%열처리%택우생장
    powder melting process%Y_2BaCuO_5%heat treatment%preferential growth
    研究粉末熔化处理工艺的前驱粉末在不同热处理制度下淬火形成的Y_2BaCuO_5粒子形貌,并与熔融织构生长工艺和熔化粉末熔化生长工艺中的Y_2BaCuO_5粒子进行比较,揭示粉末熔化处理工艺中等轴状Y_2BaCuO_5粒子的形成机制.结果表明,粉末熔化处理工艺中Y_2BaCuO_5粒子形成等轴状的原因是其前驱粉末的组成有利于减少在包晶反应过程中形成过量的液相,抑制了Y_2BaCuO_5粒子的择优生长.
    연구분말용화처리공예적전구분말재불동열처리제도하쉬화형성적Y_2BaCuO_5입자형모,병여용융직구생장공예화용화분말용화생장공예중적Y_2BaCuO_5입자진행비교,게시분말용화처리공예중등축상Y_2BaCuO_5입자적형성궤제.결과표명,분말용화처리공예중Y_2BaCuO_5입자형성등축상적원인시기전구분말적조성유리우감소재포정반응과정중형성과량적액상,억제료Y_2BaCuO_5입자적택우생장.
    The morphology of powder melting processed Y_2BaCuO_5 particles quenched in different heat treatment system was investigated, and compared with that of the Y_2BaCuO_5 particles in melt texture growth process and melt powder melt growth process. The forming mechanism of equiaxed Y_2BaCuO_5 particles in powder melting process was revealed. The results show that the composition of precursor powder make the excess liquid phase in powder melting process decrease, which inhibits the preferential growth of Y_2BaCuO_5 particles.
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